Hairy willowherb wani nau'in tsiro ne da ke cikin gidan Onagraceae kuma an san shi a kimiyance da Epilobium hirsutum. Sunan shukar ne saboda masu tushe masu gashi da ganyaye, kuma tana samar da furanni ruwan hoda-purple waɗanda suke fure a cikin watannin bazara. Hakanan ana san shukar da wasu sunaye iri-iri, gami da babban willowherb, codlins-da-cream, da ciyawa. Ya fito ne daga Turai da Asiya, amma an gabatar da shi zuwa wasu sassa na duniya, ciki har da Arewacin Amirka, inda ake kallonsa a matsayin nau'i mai ban tsoro.